Finding the Fourth Proportional to 141,779.10, 212,318.50 and 105,668.98
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Solution
The fourth proportional to 141,779.10, 212,318.50 and 105,668.98 is: 158,242.50
Step by Step Solution
- Step 1: Write the proportion equation
141,779.10 : 212,318.50 = 105,668.98 : x - Step 2: Convert to fraction form
141,779.10/212,318.50 = 105,668.98/x - Step 3: Cross multiply
141,779.10x = 212,318.50 × 105,668.98 - Step 4: Simplify right side
141,779.10x = 22,435,479,330.13 - Step 5: Solve for x
x = 22,435,479,330.13/141,779.10 - Step 6: Final answer
x = 158,242.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.